Section Env-Wq 713.09 - Aerated Lagoon Design: Aeration Equipment In addition to the applicable portions of Env-Wq 713.02 through Env-Wq 713.05, aerated lagoon aeration equipment shall meet the following requirements:
(a) Aeration shall be of the diffused or mechanical mixing type; and(b) For diffused air systems: (1) Multiple blower units shall be provided and sized such that, with any unit out of service, the remaining units are capable of supplying all aeration needs;(2) Means shall be provided for regulating, measuring, and recording the flow of air to the lagoons;(3) Air diffusion piping headers and piping supports shall be corrosion-resistant with a durability for the anticipated life of the WWTP; and(4) Ductile iron pipe headers or piping shall not be cement lined.N.H. Admin. Code § Env-Wq 713.09
(See Revision Note at chapter heading for Env-Wq 700) #8590, eff 3-25-06
Amended byVolume XXXIV Number 46, Filed November 13, 2014, Proposed by #10693, Effective 10/15/2014, Expires10/15/2024.